This paper aims to discuss the key points of quality control of on-site testing in mine safety inspection laboratory,including the quality and skills of analysts,the management and maintenance of instruments and equipment,the specification of sample management,and the condition control of environmental facilities.Through the implementation of a strict quality control system and the application of highly automated inspection technology,the accuracy and trust of inspection data can be significantly improved.Formulate specific requirements and implementation strategies for laboratory personnel training,instrument maintenance system,sample management process and environmental condition control,so as to comprehensively improve the quality of on-site testing work.